Um! I've been tweaking my formula every time we do it, and I've finally decided that the fairest and simplest way to go is to just add the modifier as a bonus score. Depending on how much I want people's self-grade to matter, I'll change how much I want to roll (anywhere from 1d25 to 1d100).
The next time we do monthly bonding confetti bombs, I'll probably make it Self-score + 1d25 (maybe 1d30?), with a target of 40 to make it all the way? So the difference between someone scoring their character 2 and someone with 9 is substantial (a pair who each have a 10 is already halfway there), but that's fair if your characters are apparently such badasses. You're still at the mercy of RNG a little, but a lot less than if I was rolling 1d100.
(This also means, if we do it again, it's going to be much harder for the sophomores or seniors to finish all four levels but OAKES HAS BEEN TWEAKING THE GAME, you're all basically a free focus group for his new toy.)
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The next time we do monthly bonding confetti bombs, I'll probably make it Self-score + 1d25 (maybe 1d30?), with a target of 40 to make it all the way? So the difference between someone scoring their character 2 and someone with 9 is substantial (a pair who each have a 10 is already halfway there), but that's fair if your characters are apparently such badasses. You're still at the mercy of RNG a little, but a lot less than if I was rolling 1d100.
(This also means, if we do it again, it's going to be much harder for the sophomores or seniors to finish all four levels but OAKES HAS BEEN TWEAKING THE GAME, you're all basically a free focus group for his new toy.)